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The relantionship between the number of $12 dvds you buy and the total cost
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The relantionship between the number of $12 dvds you buy and the total cost

User Nsgulliver
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y = kx

Y is the total cost

The number of dvds is x

The cost of each one ($12) is k

y = $12x

Or instead of Y you can but T for total cost

t = $12x
User Bineteri
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